| Filename | /usr/share/perl/5.18/Exporter.pm |
| Statements | Executed 492 statements in 1.80ms |
| Calls | P | F | Exclusive Time |
Inclusive Time |
Subroutine |
|---|---|---|---|---|---|
| 35 | 32 | 22 | 1.57ms | 1.66ms | Exporter::import |
| 71 | 2 | 1 | 60µs | 60µs | Exporter::CORE:match (opcode) |
| 113 | 1 | 1 | 39µs | 39µs | Exporter::CORE:subst (opcode) |
| 0 | 0 | 0 | 0s | 0s | Exporter::__ANON__[:64] |
| 0 | 0 | 0 | 0s | 0s | Exporter::as_heavy |
| 0 | 0 | 0 | 0s | 0s | Exporter::export |
| 0 | 0 | 0 | 0s | 0s | Exporter::export_fail |
| 0 | 0 | 0 | 0s | 0s | Exporter::export_ok_tags |
| 0 | 0 | 0 | 0s | 0s | Exporter::export_tags |
| 0 | 0 | 0 | 0s | 0s | Exporter::export_to_level |
| 0 | 0 | 0 | 0s | 0s | Exporter::require_version |
| Line | State ments |
Time on line |
Calls | Time in subs |
Code |
|---|---|---|---|---|---|
| 1 | package Exporter; | ||||
| 2 | |||||
| 3 | 1 | 13µs | require 5.006; | ||
| 4 | |||||
| 5 | # Be lean. | ||||
| 6 | #use strict; | ||||
| 7 | #no strict 'refs'; | ||||
| 8 | |||||
| 9 | 1 | 500ns | our $Debug = 0; | ||
| 10 | 1 | 200ns | our $ExportLevel = 0; | ||
| 11 | 1 | 500ns | our $Verbose ||= 0; | ||
| 12 | 1 | 700ns | our $VERSION = '5.68'; | ||
| 13 | 1 | 500ns | our (%Cache); | ||
| 14 | |||||
| 15 | sub as_heavy { | ||||
| 16 | require Exporter::Heavy; | ||||
| 17 | # Unfortunately, this does not work if the caller is aliased as *name = \&foo | ||||
| 18 | # Thus the need to create a lot of identical subroutines | ||||
| 19 | my $c = (caller(1))[3]; | ||||
| 20 | $c =~ s/.*:://; | ||||
| 21 | \&{"Exporter::Heavy::heavy_$c"}; | ||||
| 22 | } | ||||
| 23 | |||||
| 24 | sub export { | ||||
| 25 | goto &{as_heavy()}; | ||||
| 26 | } | ||||
| 27 | |||||
| 28 | # spent 1.66ms (1.57+99µs) within Exporter::import which was called 35 times, avg 48µs/call:
# 3 times (119µs+6µs) by Moo::sification::BEGIN@5 or namespace::autoclean::BEGIN@10 or namespace::clean::BEGIN@11 at line 38 of Sub/Exporter/Progressive.pm, avg 42µs/call
# 2 times (112µs+14µs) by String::Markov::BEGIN@12 or namespace::autoclean::BEGIN@11 at line 35 of List/Util.pm, avg 63µs/call
# once (174µs+11µs) by String::Markov::BEGIN@11 at line 11 of String/Markov.pm
# once (90µs+5µs) by Method::Generate::Accessor::BEGIN@4 at line 4 of Method/Generate/Accessor.pm
# once (75µs+5µs) by Moo::BEGIN@4 at line 4 of Moo.pm
# once (69µs+5µs) by Sub::Defer::BEGIN@5 at line 5 of Sub/Defer.pm
# once (63µs+6µs) by Method::Generate::Constructor::BEGIN@4 at line 4 of Method/Generate/Constructor.pm
# once (62µs+5µs) by Sub::Defer::BEGIN@6 at line 6 of Sub/Defer.pm
# once (55µs+4µs) by Class::XSAccessor::BEGIN@5 at line 5 of Class/XSAccessor.pm
# once (48µs+3µs) by Data::GUID::BEGIN@7 at line 7 of Data/GUID.pm
# once (48µs+3µs) by Data::UUID::BEGIN@5 at line 5 of Data/UUID.pm
# once (47µs+3µs) by namespace::clean::BEGIN@38 at line 38 of namespace/clean.pm
# once (47µs+2µs) by Class::XSAccessor::Heavy::BEGIN@7 at line 7 of Class/XSAccessor/Heavy.pm
# once (45µs+4µs) by Sub::Quote::BEGIN@7 at line 7 of Sub/Quote.pm
# once (44µs+3µs) by Try::Tiny::BEGIN@15 at line 15 of Try/Tiny.pm
# once (43µs+2µs) by Unicode::Normalize::BEGIN@12 at line 12 of Unicode/Normalize.pm
# once (43µs+3µs) by Module::Implementation::BEGIN@9 at line 9 of Module/Implementation.pm
# once (41µs+2µs) by Sub::Install::BEGIN@6 at line 6 of Sub/Install.pm
# once (41µs+2µs) by Method::Generate::Accessor::BEGIN@7 at line 7 of Method/Generate/Accessor.pm
# once (39µs+2µs) by Method::Generate::Constructor::BEGIN@5 at line 5 of Method/Generate/Constructor.pm
# once (37µs+2µs) by Data::OptList::BEGIN@10 at line 95 of Params/Util.pm
# once (32µs+2µs) by Method::Generate::Constructor::BEGIN@6 at line 6 of Method/Generate/Constructor.pm
# once (30µs+2µs) by Try::Tiny::BEGIN@1 at line 1 of (eval 6)[Try/Tiny.pm:18]
# once (30µs+1µs) by Method::Generate::Accessor::BEGIN@8 at line 8 of Method/Generate/Accessor.pm
# once (29µs+1µs) by Sub::Quote::BEGIN@8 at line 8 of Sub/Quote.pm
# once (27µs+1µs) by Method::Generate::Constructor::BEGIN@7 at line 7 of Method/Generate/Constructor.pm
# once (24µs+0s) by Sub::Identify::BEGIN@4 at line 4 of Sub/Identify.pm
# once (18µs+0s) by Moo::_Utils::BEGIN@27 at line 27 of Moo/_Utils.pm
# once (9µs+0s) by Try::Tiny::BEGIN@12 at line 12 of Try/Tiny.pm
# once (8µs+0s) by Sub::Defer::BEGIN@4 at line 4 of Sub/Defer.pm
# once (8µs+0s) by Sub::Name::BEGIN@58 at line 58 of Sub/Name.pm
# once (7µs+0s) by Sub::Quote::BEGIN@9 at line 9 of Sub/Quote.pm | ||||
| 29 | 35 | 31µs | my $pkg = shift; | ||
| 30 | 35 | 32µs | my $callpkg = caller($ExportLevel); | ||
| 31 | |||||
| 32 | 35 | 22µs | if ($pkg eq "Exporter" and @_ and $_[0] eq "import") { | ||
| 33 | 5 | 19µs | *{$callpkg."::import"} = \&import; | ||
| 34 | 5 | 38µs | return; | ||
| 35 | } | ||||
| 36 | |||||
| 37 | # We *need* to treat @{"$pkg\::EXPORT_FAIL"} since Carp uses it :-( | ||||
| 38 | 30 | 69µs | my $exports = \@{"$pkg\::EXPORT"}; | ||
| 39 | # But, avoid creating things if they don't exist, which saves a couple of | ||||
| 40 | # hundred bytes per package processed. | ||||
| 41 | 30 | 44µs | my $fail = ${$pkg . '::'}{EXPORT_FAIL} && \@{"$pkg\::EXPORT_FAIL"}; | ||
| 42 | 30 | 19µs | return export $pkg, $callpkg, @_ | ||
| 43 | if $Verbose or $Debug or $fail && @$fail > 1; | ||||
| 44 | 30 | 35µs | my $export_cache = ($Cache{$pkg} ||= {}); | ||
| 45 | 30 | 42µs | my $args = @_ or @_ = @$exports; | ||
| 46 | |||||
| 47 | 30 | 18µs | if ($args and not %$export_cache) { | ||
| 48 | s/^&//, $export_cache->{$_} = 1 | ||||
| 49 | 10 | 318µs | 113 | 39µs | foreach (@$exports, @{"$pkg\::EXPORT_OK"}); # spent 39µs making 113 calls to Exporter::CORE:subst, avg 342ns/call |
| 50 | } | ||||
| 51 | 30 | 7µs | my $heavy; | ||
| 52 | # Try very hard not to use {} and hence have to enter scope on the foreach | ||||
| 53 | # We bomb out of the loop with last as soon as heavy is set. | ||||
| 54 | 30 | 21µs | if ($args or $fail) { | ||
| 55 | ($heavy = (/\W/ or $args and not exists $export_cache->{$_} | ||||
| 56 | or $fail and @$fail and $_ eq $fail->[0])) and last | ||||
| 57 | 22 | 255µs | 39 | 40µs | foreach (@_); # spent 40µs making 39 calls to Exporter::CORE:match, avg 1µs/call |
| 58 | } else { | ||||
| 59 | ($heavy = /\W/) and last | ||||
| 60 | 8 | 111µs | 32 | 20µs | foreach (@_); # spent 20µs making 32 calls to Exporter::CORE:match, avg 641ns/call |
| 61 | } | ||||
| 62 | 30 | 7µs | return export $pkg, $callpkg, ($args ? @_ : ()) if $heavy; | ||
| 63 | local $SIG{__WARN__} = | ||||
| 64 | 30 | 178µs | sub {require Carp; &Carp::carp} if not $SIG{__WARN__}; | ||
| 65 | # shortcut for the common case of no type character | ||||
| 66 | 30 | 515µs | *{"$callpkg\::$_"} = \&{"$pkg\::$_"} foreach @_; | ||
| 67 | } | ||||
| 68 | |||||
| 69 | # Default methods | ||||
| 70 | |||||
| 71 | sub export_fail { | ||||
| 72 | my $self = shift; | ||||
| 73 | @_; | ||||
| 74 | } | ||||
| 75 | |||||
| 76 | # Unfortunately, caller(1)[3] "does not work" if the caller is aliased as | ||||
| 77 | # *name = \&foo. Thus the need to create a lot of identical subroutines | ||||
| 78 | # Otherwise we could have aliased them to export(). | ||||
| 79 | |||||
| 80 | sub export_to_level { | ||||
| 81 | goto &{as_heavy()}; | ||||
| 82 | } | ||||
| 83 | |||||
| 84 | sub export_tags { | ||||
| 85 | goto &{as_heavy()}; | ||||
| 86 | } | ||||
| 87 | |||||
| 88 | sub export_ok_tags { | ||||
| 89 | goto &{as_heavy()}; | ||||
| 90 | } | ||||
| 91 | |||||
| 92 | sub require_version { | ||||
| 93 | goto &{as_heavy()}; | ||||
| 94 | } | ||||
| 95 | |||||
| 96 | 1 | 7µs | 1; | ||
| 97 | __END__ | ||||
sub Exporter::CORE:match; # opcode | |||||
# spent 39µs within Exporter::CORE:subst which was called 113 times, avg 342ns/call:
# 113 times (39µs+0s) by Exporter::import at line 49, avg 342ns/call |